Double-pole electric-circuit breaker.



DGUBLE ISOLE ELECTRIC CIRCUIT BRBMB.

APPLICATION FILED JUI-Y 24,1908.

latente Nov. 10, 1908.

iria' in@ i 1 w; "ga/si ,4. wkiie. Merli La@ WllAM HAADIG SCOTT. Ol" NORWICH,

11:72am, it may sence/1n ne ii known tha i. Winnaar Haanixe Hearn?. a subject of the Eine' or' (rea't riain and reame... of Gerlin- "s nrks. Norwich. in die rennt): of fei'ielk. England. electrical engineer. have invented neiv and nneful lleuhlePOle Electric-Girellil' Breakers, which The ifellmving is a l i'ie('iieai( n.

This inventien relates le rela7 double nele eleerie circuit breaker` in which the inain eireui .is madrbbv ineann ef an eleelre-niagneifally operated Hwirh. he circuit beinlgj breken by the openingv el: the rela).v eircui'i. Y

ecerding to thinl invention Cenis of dii'lerent polarity are arranged far pesmsle from each other. especially al; the

' pla ies where the circuit is broken, each of the sngle-pele relay Switches which make up die doublepole Circuit breaker being, far

- as the irenitbreaking part is concerned, in

distinct emnpart'inenih` has preventing any danger of flashing between the tivo mains of Opposite polarity. 'l`he binnenin also are above the eenaets in the eoinpartmens (which are preferably lined Wih asbeies. er 'the like), ,e ibat he het air. caused by ihe momentary are clears away. and dees' nel. gef. liar-k re ine contacts.

'The :iefompanyinfg d arrangement in acerndain'e with niv invenioi.

Figure l i an elevatibn and l plan.

l arrange the uve switches' and B at opposite endsl of an eleelrdniagiiet C. The Switch cenaers ilieniselves l Inel'er to arrange de- Seribed in the specification of Briish Letters latent: No. 255.751. A. i). lmfgrantefl to me,

.he actual circuit. being broken prijn'zipally a' i (he iop Contact. vrhii-h in' provided with a magnetic blmv-uui xviih vparknig contacts as shown. l prefer ihe denim-magnet @Rte be an iron-vlad sulennifl with plungerS c c lo whif'h iluI yviieh iranien 1,. ,1:2 are hinged, which plunger: are aurai-t -i towards each other in lhe middle ef the selznriid, although ibis eleelreanagnetie arrangmneni; may be of anyY other Vanitable igleseriptien. l prefer to the main eir- Specification o' Letters Faisant.

ENGLAN D.

Patented Nov. lO, 1908.

19%. Serial No. 445,270.

of i

l i r l l l I I.

eonneei the 'two frames "n .r2 by links l) e .make ille Switches Werk simultaneously. l arrangement enable@- he Uve sivitrhes (wliifzli of Course have full foliage beliveen then!) le be arranged al a niax'inunn .flisanwe apar. and also enables the breaking pm'liens or' the swich te be arranged in serual'e man parnients Y Y2 which prevens die pass biliy er' flashing: beiveen the mveniains el' opposite polarity. 'The said fue, rmi'iparinena prefer e line 'ivih asbeaes. :aber bad-conducting, and {larme-remaring, material, as shown at 1/ 1/2.

The iron-clad solenoid C. 01' its equivaienl, wound with fine vwire in shunt` n the niainn1 er it be aereas a separate circuit as naaf.' be most Convenienl.

The overload Operatingv device is Shown in the drawings above the iron-Clad Solenoid C. and it eensiss o a device for prodnviu;r a inevable magnetic 'ield ai H. il in wbivli the inain current. 'iassingg; threugh fixed i-nn- (luctors and van flew. as described in the speciiieaion ef my reneurrenl abplii-at'inn for paient (fia-#rial -lnnibe 4027.830). the arrangement ef the rireuit breaker itself beineA Shown 21S lic-ing in a(' :(n danr:e willi Ibai applieat'ien.

l'lavinfg new par'icnlarlj. defrribed and asuertained the nature ef in v ysaid invention and. in .vha.y manner 'lie Same is in be performed, l deviare hat what. l ('laiin is:

Double-pele elw-trie circuit breakers,l in which the-avviiebes Opel-aline' the main urrents are at apposite ends of an eleilrn-niajf netie systeni", the sparking' points el the swiehesbeing arranged in Separate wenn partment, an hereinlwr'ore explained7 se that flashing over .freni one pole i0 another is prevented.

ln testimony wherenl' l have ,signed in v naine to this speen'ealion in the preferire el two gubserilnnrj witnesses.

,VlLLl/XM lllDlNG SUU'T'.

lV itnesses .Munn il. S'iinixns, lienaia; liemuca. 

